body {
    background-color: #F5F5F5;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 2048px;
    margin: 0 auto;
}

.player-display-area {
    flex: 1;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 20px;
}

.player-card {
    background-color: white;
    width: 15%;
    height: 20vh;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

.player-card.current {
    background-color: #E0F2F1;
    border: 2px solid #00BCD4;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

.operation-area {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 20px;
}

button {
    background-color: #00A896;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 15px 30px;
    font-size: 24px;
    cursor: pointer;
}

button:hover {
    background-color: #00796B;
}

.player-id {
    font-size: 28px;
    color: #333333;
}

.player-time {
    font-size: 48px;
    font-weight: bold;
    color: #333333;
}

.sort-buttons {
    position: absolute;
    right: 10px;
    top: 10px;
}

.sort-buttons i {
    font-size: 18px;
    margin-left: 5px;
    cursor: pointer;
}

.sort-buttons i:hover {
    color: #FF7D00;
}

.color-picker {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
}

.color-panel {
    position: absolute;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
}

.color-option {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}